06-24-2011, 09:36 PM
Vec2Ds can't be added or subtracted or etc. normally. They have special features. For example,
part.Position = part.Position:add(Vec2D(0, 5))
would move the variable 'part' up 5 units.
part.Position = part.Position:add(Vec2D(0, 5))
would move the variable 'part' up 5 units.